Furuno CSH-5L/CSH-8L MAINTENANCE, Troubleshooting, General Maintenance, Cleaning the Equipment

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8.MAINTENANCE, TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

8.1General Maintenance

This equipment is designed and constructed to provide many years of trouble-free performance when properly maintained. However, no machine can perform to the utmost of its ability without proper maintenance. Check the following points monthly.

•Check all cables. If damaged, replace.

•Check connectors at rear of each unit. Tighten or clean as necessary.

•Check earth of each unit. Tighten or clean as necessary.

•Check voltage of ship’s mains to be sure it is within the equipment’s power rating.

8.2Cleaning the Equipment

Dust or dirt can be removed from the equipment with a soft, dry cloth. Do not use chemical cleaners to clean the equipment – they can remove paint and markings or deform the equipment.

8-1

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Contents Color Scanning Sonar 00080940402 Safety Instructions Turn off the hull unit before using the hand crank Table of Contents Marks and Data Index Word to the Owner of the CSH-5L/CSH-8L FeaturesForeword Vii System ConfigurationSystem configuration of CSH-5L Viii System configuration of CSH-8LControl unit Operational OverviewControl Unit Remote controller Remote Controller optionLowering the transducer Basic Operating ProcedureTurning on the power Sonar menu TransmittingSystem menu Adjusting backlighting of control unitCOMBI-1 Choosing a display modeMode description Description Display NormCOMBI-1 display sonar display + audio display Normal mode display sonar displaySonar display COMBI-1 display sonar display + audio displayDetection range Choosing the display rangeCOMBI-2 display sonar display + echosounder display COMBI-2 display sonar display + echosounder displayExamples of proper and improper gain Adjusting the gainRetracting the transducer, turning off the power Tilt range Setting the Tilt AngleAutomatic tilt on/off Auto tilt concept Range and tilt angleRange m ±2-10 ±4-14 ±6-20 ±10-26 Case 2 Tilt angle 10 to 20 degrees How to discriminate fish echoes from the bottomBottom and tilt angle Case 1 Tilt angle 30 to 40 degreesTilt angle and surface fish example CSH-5L Points to considerTilt angle for surface fish Location of trackball data Finding Range and Bearing to a TargetSuitable tilt angle Depth, detection range and tilt angleSonar Menu Overview Operating procedureDescription Ref. Sonar menu descriptionDescription of sonar menu Description of sonar menu con’t from previous This page intentionally left blank How TVG works Fine Tuning the Sonar PictureEliminating Unwanted Echoes 1 AGC Displaying Surface Fish ClearlySuppressing Bottom Tail 3 2ND AGC Pulse lengthHow to adjust TX output Rejecting noise with the noise limiter Rejecting Sonar Interference and NoiseIdentifying noise source Rejecting noise with the interference rejectorInterference rings Rejecting interference with TX cycleHorizontal beamwidth Choosing BeamwidthDeleting Weak Echoes Echo AveragingThis page intentionally left blank Target lock mark and target lock data Advanced Sonar OperationTracking a Fish School target lock Target lock and tilt angle Detecting Fish Schools Aurally Fish alarm zones Fish AlarmFish alarm zone Fish mark and fish mark data Measuring Fish School SpeedEntering a fish mark Deleting individual fish marks How to use the off-center functionRelocating Fish School for Easy Observation Entering an event mark How to use the event markEvent Mark, Own Ship Position Mark Event markEvent marks Entering an own ship position markDeleting an event mark Ship Collectively Deleting MarksTrack Erase Marks dialog box Function Keys F1-F4Operating the function keys Programming for fishing ground or target fishBeamwidth Color Curve Response Programming specific functionUseful programs main items only TX Output Pulse Length TX Cycle TVG Near TVG FAR HORFunction key assignment confirmation screen Confirming function key programStabilizer mark Suppressing Effects of Pitching and Rolling StabilizerHow the stabilizer works Advanced Sonar Operation Display range and shift concept Echosounder ModeChoosing the Range Sounder menu Adjusting the GainMeasuring depth Picture Advance SpeedMeasuring Depth Clutter Suppressing InterferenceSuppressing Low Level Noise InterferenceWeak echoes Erasing Weak EchoesDraft Other Items on the Sounder MenuSounder menu description CurveMarks and data on the normal display Marks and DataMarks and Data on the Normal Display Points to North Heading Mark Description of marks and data on the normal displayMarks and Data Press the R/B key. Own ship position and trackball mark are Marks and data on the echosounder and audio displays Marks and Data on the Echosounder and Audio DisplaysOn the System menu Bottom echoes Interpreting the DisplayBottom Echo Fish echoes Fish SchoolWake Sea Surface ReflectionsWake Sea surface reflectionsNoise and interference False Echo by SidelobeNoise and Interference Sidelobe echoMarks menu Marks and System MenusMarks Menu Marks menu description Disp Select System MenuSystem menu Description of System menu DimmerDescription of System menu con’t from previous Cleaning the Equipment MAINTENANCE, TroubleshootingGeneral Maintenance Lubrication points, zinc plate Hull Unit MaintenanceHull unit maintenance points Hand crank Manually raising the transducerHull unit Type Code No Fuse ReplacementFan Replacement Unit Fuse Type Code NoSymptom Check, Remedy TroubleshootingHigh speed Error MessagesMessage Meaning, Remedy Overvoltage Transducer not retractedChoosing a diagnostic test Diagnostic TestsContinuous test example CSH-5L, 55 kHz transducer Description of diagnostic testsSingle test, Continuous test Panel test Panel testPattern test Color testWhite RED Green Blue Color testSIO test SIO testEcho tests Echo testsSpecifications of Color Scanning Sonar CSH-5L/8L Hull Unit Interface This page is intentionally left blank AP-1 Menu TreeSonar menu Sounder menuAP-2 Marks menuSystem menu IN-1 Index

CSH-5L/CSH-8L specifications

Furuno CSH-5L and CSH-8L are advanced marine radar systems known for their cutting-edge technology and user-friendly interfaces. Designed primarily for maritime applications, these radar units cater to a wide range of vessels, from commercial ships to fishing boats. The primary distinguishing feature of the CSH-5L and CSH-8L radar systems lies in their ability to provide high-resolution images and precise detection of targets, ensuring navigational safety and operational efficiency on the water.

One of the standout technologies incorporated into both models is the pulse compression technique. This feature significantly enhances target resolution and minimizes blind spots, allowing the radar to detect smaller objects at greater distances. With the CSH-5L and CSH-8L's powerful signal processing capabilities, users can expect exceptional performance even in challenging weather conditions, ensuring reliable operation during storms or fog.

The CSH-5L model operates at a frequency range of 5 GHz, while the CSH-8L uses an 8 GHz frequency. Both radars are equipped with a rotating antenna that provides a wide coverage range, allowing for efficient monitoring of the surrounding marine environment. Their high sensitivity and low noise levels enhance target detection, making them particularly useful for locating small fishing vessels or buoys.

Another important characteristic of the Furuno CSH-5L and CSH-8L is their user-friendly interfaces. Both models feature intuitive controls, allowing operators to adjust settings easily and access critical information quickly. The displays are designed for clarity, enabling users to distinguish between targets and navigate effectively.

Additionally, the radar systems include advanced features such as automatic target tracking and target acquisition capabilities. This functionality allows users to monitor multiple targets simultaneously, providing essential situational awareness for safe navigation. The CSH-5L and CSH-8L also support integration with other onboard systems, including ECDIS (Electronic Chart Display and Information System), which enhances the overall effectiveness of maritime navigation.

In summary, the Furuno CSH-5L and CSH-8L radar systems represent the forefront of marine radar technology, offering exceptional detection capabilities, user-friendly controls, and robust integration options. Their advanced features ensure that mariners can navigate confidently, making them a vital asset for anyone operating in the marine environment.